it does on but its not showing on the scree

[lindinhlanhlas]

my computer do on but it does not come on the screen than is on

 

[Malwarevirus]

There are too many possibilities
1)Your screen inverter
2.)CCFL(Cold Cathode Fluorescent Lamp)
3.)Graphics card
4.)Power supply
5.)Motherboard
Try this may be it help you
1.)press Alt + Fn key to improve your moniter light.
2.)Check your power cable is ok.
You do not clearify wheather you have a LCD screen or Desktop moniter.